Improvement in stave-jointers



UNITED STATES PATENT OEEICE.

JAMES F. SAYER, OE MAGOMB, NEW YORK.

IMPROVEMENT IN STAVEJO|NTERS.

Specification forming part of Letters Patent No. 57,387, dated August -21, 1866.

To all whom it may concern:

Be it known that I, JAMES I?. SAYER, of ll'lacomb, in the county of St. Lawrence and State of New York, have invented a new and useful Improvement in Stave-Jointers; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification.

Figure l is a perspective view of my improved apparatns, Fig. 2, a cross-section of the same.

Like letters of reference indicate corresponding parts in both iigures. l

M yinvention consists in the special arrangement of the apparatus whereby the stave is clamped to the bed in the form it assumes in a barrel. A knife or cutter runs over its edge to remove the rough, and a plane then smoothes it down.

As represented in the drawings, A is a bed having a curved side, a, for tting the stave V thereto, and a level surface, b, for the action of theplane. The curve of the side a is made to conform to that of the barrel, both longitudinally and transversely. At one extremity is a socket, d, to receive one end of the stave c, and at the other a clamp-head,f, jointed at y to a bearing, h. This head is made curved on the inside7 to correspond with the side a, and

it is opened or closed by a handle, t'. One end of the stave is placed in the socket d, and the clamp-head is then closed on the other end, as shown in black lines, Fig. 1, when the stave is ready to be jointed.

Midway of the bed is a bearing, k, to which is jointed a knife, B, by means of a bolt, Z, or equivalent. This knife is provided with a handle, m, and double cutting-edges n a. It moves over the edge of the stave from the center each way, as shown in dotted and red lilies,

so as to cut only with the grain. When the rough edge of the stave has been cut down lso as to tit it for smoothing, the knife is thrown around out of the way, as in red lines, andthe plane G' is driven over the bed, and perfectly joints the edge. In order to guide the plane properly it has a vertical tongue, p, that runs the center cuts off the rough Without running j against the grain, and a few strokes of the plane completes the operation. The edge, whenjointed, ts accurately, since the form is the same as in the barrel.

I am aware that staves have before been scoured to a bed in the curved form they assume in the barrel, and then jointed by mea-ns of circular saws or cutters; but such, broadly, I do not claim.

What I claim as my invention, and'desire to secure by Letters Patent, s

The double-acting knife B, in combination with the table having the curved side a., groove r, pla-ne C, and clamp i"attached, when constructed to operate substantially as described and for the purposes set forth.

JAMES F. SAYER. Witnesses JOHN STACEY, FORTUNATUS SAYER. 

